Lennon Rodgers, Director of the Grainger Engineering Design Innovation Lab at UW-Madison, shares how he and the team he was working with designed and built an electric motorcycle used in the Isle of Man Tourist Trophy Zero race and in the Pikes Peak International Hill Climb.

John Rummel, Astrophotographer, discusses the quest to find night skies which are free of ambient light. Rummel explains the Bortle scale, used as a tool to determine how dark the skies are around the world.

Adventurer Richard Bangs explores the ecological nexus of North and South America -- Costa Rica -- home to endless natural wonders: wild rivers, fire-spewing volcanoes, verdant rainforests and more species of animals and plants than found in the United St...